Cocos2dx實現(xiàn)數(shù)字跳動效果

第Cocos2dx實現(xiàn)數(shù)字跳動效果本文實例為大家分享了Cocos2dx實現(xiàn)數(shù)字跳動效果的具體代碼，供大家參考，具體內(nèi)容如下

封裝的類如下：

.h文件

classDigitalBeatText:publiccocos2d::Node

public:

DigitalBeatText();

~DigitalBeatText();

staticDigitalBeatText*create(intvalue);

voidsetValue(intnewValue);

protected:

boolinit(intvalue);

voidsetValueNoAction(intnewValue);

voidstartRoll();

voidstopRoll();

voidonTimeHandler(floatdt);

protected:

cocos2d::ui::Text*m_txt;

intm_lastValue;

intm_newValue;

intm_valueGap;//數(shù)字跳動間隔

floatm_scheduleInterval;//調(diào)度器間隔

boolm_isReverse;//true:從大到小

};

.cpp文件：

DigitalBeatText::DigitalBeatText()

:m_txt(nullptr)

,m_lastValue(0)

,m_newValue(0)

,m_valueGap(0)

,m_scheduleInterval(1.0f/60.f)

,m_isReverse(false)

DigitalBeatText::~DigitalBeatText()

DigitalBeatText*DigitalBeatText::create(intvalue)

autopRet=newDigitalBeatText;

if(pRet-init(value))

pRet-autorelease();

returnpRet;

CC_SAFE_DELETE(pRet);

returnnullptr;

boolDigitalBeatText::init(intvalue)

if(!Node::init()){

returnfalse;

charbuff[16]={0};

m_txt=ui::Text::create();

m_txt-setFontSize(36);

sprintf(buff,"%d",value);

m_txt-setString(buff);

this-addChild(m_txt);

returntrue;

voidDigitalBeatText::setValue(intnewValue)

m_isReverse=newValuem_lastValue;

stopRoll();

m_newValue=newValue;

startRoll();

voidDigitalBeatText::setValueNoAction(intnewValue)

m_lastValue=newValue;

m_newValue=newValue;

m_txt-setString(cocos2d::StringUtils::toString(m_lastValue));

voidDigitalBeatText::startRoll()

intcount=m_newValue-m_lastValue;

if(count0){

m_valueGap=ceil(count/(1.0/m_scheduleInterval));

}else{

m_valueGap=floor(count/(1.0/m_scheduleInterval));

schedule(CC_SCHEDULE_SELECTOR(DigitalBeatText::onTimeHandler),m_scheduleInterval);

voidDigitalBeatText::stopRoll()

unschedule(CC_SCHEDULE_SELECTOR(DigitalBeatText::onTimeHandler));

voidDigitalBeatText::onTimeHandler(floatdt)

m_lastValue+=m_valueGap;

boolstop=false;

if(!m_isReverse)

if(m_lastValue=m_newValue){

m_lastValue=m_newValue;

stop=true;

else{

if(m_lastValue=m_newValue){

m_lastValue=m_newValue;

stop=true;

m_txt-setString(cocos2d::StringUtils::toString(m_lastValue));

if(stop){

this-stopRoll();

}

使用示例：

m_index=1;

m_beatT=DigitalBeatText::create(m_index);

m_beatT-setPosition(visibleSize*0.5);

this-addChild(m_beatT);